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S21 -1V 04DAQLJIN I.10CAI. HEALTH DISTRICT <br />SAMPLING PROTOCAL FOR ROUTINE TANK REMOVALS <br />The following represents minimum sampling criterion required for closure compliance. Soil <br />samples collected shall be representative of native soils beneath the tank's <br />invert [tank's bottom] at a collection depth not be exceed 2 - 4 feet. If contamination <br />is documented during closurean Unauthorized Release notification must be filled out and <br />Lys. submitted to SJLHD within 5 Section 2652, CCR. <br />WATER NOT PRESENT IN THE TANK PIT <br />.___._.__.___-- ------ ___..._.__...<___..____....._......._._..._........ .... _....... __.......... .......................................... ._____.__..__...__.._._.W..._..._...____.__..._._._._,_.__..__.._........._........_. <br />TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES <br />SOIL SAMPLES <br />Less than 1000 gallons ONEpertank Fill -or pump end of tank <br />000 - 10,000 gallons TWO per tank One at each end of tank <br />10,001 gallons and up THREE OR MORE Ends and Middle or <br />per tank 2enerally spaced along <br />T_ t, f the tank <br />ping <br />ONE <br />TANK SIZE <br />10,000 GALLONS <br />OR LESS <br />(Single Tank) <br />GREATER THAN <br />10,000 GALLONS <br />OR <br />TANK CLUSTER <br />he leng o <br />EVERY 20 LINEAL FEET <br />WATER IS PRESENT IN TANK PIT <br />MINIMUM NO. OF <br />SOIL SAMPLES <br />TWO <br />FOUR <br />LOCATION OF SOIL <br />SAMPLES <br />From wall next to <br />tank ends at soil/ <br />groundwater <br />interface <br />From wall next to <br />tank ends at soil/ <br />groundwater <br />interface <br />MINIMUM NUMBER <br />OF WATER SAMPLES <br />ONE <br />ONE <br />OTHER S PEC I Z�6L. CONDITION S <br />SLAB PRESENT IN TANK PIT <br />Soil samples shall be obtained beneath the slab within native soils. Penetration through <br />the obstruction will be required in order to collect the samples. [Physical removal of the <br />obstruction will then allow sampling according to the above conditions.] <br />...._._........._...._._.............................._...._-_...___._..._ _ <br />TANK SIZE MINIMUM NUMBER OF LOCATION OF SOIL SAMPLES <br />SOIL SAMPLES <br />Less than 1000 gallons THREE per tank Center and ends or sides <br />1000 - 10,000 gallons FIVE per tank Center and ends or sides <br />10,001 gallons and up FIVE'OR MORE per Ends and Middle and <br />tankgenerall spaced along <br />the length of the tank <br />EH 23 047 12/88 <br />REVISED 1/89 <br />